My house was insulated in 1984 and when built, the construction company ran the batts across the stud wall and into the soffit, so no soffit air would enter the roof cavity. I removed the batts from the soffit, including the portion over the exterior stud wall when I installed larger soffit vents to ventilate the roof cavity. I now get condensation inside along the roof where the corner of the ceiling wall and interior wall line meet the which I suspect is due to the cold air penetrating at the roof line.
Can I solve thiis but reinstalling batts over the stud wall line when I replace my soffit? I plan to open up the entire length of the soffit (likely aluminum installation) and use the full vent soffit panels for the entire length of the roof so that I can maximize airflow from the soffit towards the apex of my roof. I'll open up all the roof joist cavities when I do this so that air will upflow for the entire length of the room instead of adjacent to the soffit vents that I installed when I first corrected this problem. So far it has worked well as my outside temp and attic temp differential averages 22F, every summer. Thanks.